Reciprocal or Paid.
The directory was first crawled by archive.org in September of 2004.
Jan 11, 12 - Paid submission form does not seem to be functioning.
May 8, 14 - Paid submission form works properly.

* We update the Alexa rank every year or so. In case of a discrepency, use the Alexa rank displayed below. The two numbers can be used to identify trends.

Alexa History:

Rank: Alexa rank (updated in real-time). Links in: The number of sites linking to this directory. Multiple links from the same website are counted once. This number is not updated often by Alexa.